KSB CTN User Manual

2 Safety
11 of 76
CTN / CTN-H
▪ When taking the pump set out of service always adhere to the procedure
described in the manual. (ðSection6.1.12,Page33) (ðSection6.3,Page36)
▪ Decontaminate pumps which handle fluids posing a health hazard.
(ðSection7.3,Page43)
▪ As soon as the work has been completed, re-install and re-activate any safety-
relevant devices and protective devices. Before returning the product to service,
observe all instructions on commissioning. (ðSection6.1,Page27)
2.8 Unauthorised modes of operation
Never operate the pump (set) outside the limits stated in the data sheet and in this
manual.
The warranty relating to the operating reliability and safety of the supplied pump
(set) is only valid if the equipment is used in accordance with its intended use.
2.9 Explosion protection
!
DANGER
Always observe the information on explosion protection given in this section when
operating the product in potentially explosive atmospheres.
Only pumps/pump sets marked as explosion-proof and identified as such in the data
sheet may be used in potentially explosive atmospheres.
Special conditions apply to the operation of explosion-proof pump sets to EU
Directive 2014/34/EU (ATEX).
Especially adhere to the sections in this manual marked with the symbol opposite and
the following sections, (ðSection2.9.1,Page11) to (ðSection2.9.4,Page12)
The explosion-proof status of the pump set is only assured if the pump set is used in
accordance with its intended use.
Never operate the pump set outside the limits stated in the data sheet and on the
name plate.
Prevent impermissible modes of operation at all times.
2.9.1 Marking
Pump The marking on the pump refers to the pump part only.
Example of such marking:
II 2 G c TX (EN 13463-1) or II 2G Ex h IIC T5-T1 Gb (ISO 80079-36)
Refer to the individual Temperature Limits table for the temperatures permitted for
the individual pump variants. (ðSection2.9.2,Page11)
The pump complies with the requirements of type of protection constructional safety
"c" to ISO80079-37.
Shaft coupling An EC manufacturer's declaration is required for the shaft coupling; the shaft
coupling must be marked accordingly.
Motor The motor must be considered separately.
2.9.2 Temperature limits
In normal pump operation, the highest temperatures are to be expected at the
surface of the pump casing, the pipe assembly, the flanged bend, the shaft seal and
in the bearing areas.
The surface temperature at the pump casing, the pipe assembly and the flanged
bend corresponds to the temperature of the fluid handled. If the pump is heated in
addition, the operator of the system is responsible for observing the specified
temperature class and fluid temperature (operating temperature).
The table below lists the temperature classes and the resulting theoretical
temperature limits of the fluid handled (a potential temperature rise in the shaft seal
area has been taken into account).
The temperature class specifies the maximum permissible temperature at the surface
of the pump set during operation. For the permissible operating temperature of the
pump in question refer to the data sheet.

KSB CTN Specifications

General

Brand	KSB
Model	CTN
Category	Water Pump
Language	English